rob and paula, back to you. >> lama, israel says they're prepared to invade and use a ground game. are they still ready to do so? >> reporter: oh, absolutely. we've been seeing tens of thousands of israeli troops and tanks, massing at the border. they say they are ready to go in, once they get the green light, if they get the green light, that is. but what we do know this, the israeli cabinet had a lengthy meeting, a four-hour meeting overnight, they were not going to ground operations just yet. but the aim of their operation, which is called center of defense, is aim of that is to stop the rockets flying from hamas and gaza, and heading towards southern israeli cities, like ashkelon and ashdod. so, that is the aim. if that does not stop. prime minister benjamin netanyahu made it clear they are ready to go in for a ground incursion in gaza. rob and paula? >> many feel that hamas would be overmatched at that point. lama hasan, live from jerusalem. thanks for that report, lama. >>> he has stabbed a security guard and has been apprehended by police and say the man had an ax. an abc ne